CN104501945A - Optical power meter automatic metrological verification system and method - Google Patents
Optical power meter automatic metrological verification system and method Download PDFInfo
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- CN104501945A CN104501945A CN201510023488.4A CN201510023488A CN104501945A CN 104501945 A CN104501945 A CN 104501945A CN 201510023488 A CN201510023488 A CN 201510023488A CN 104501945 A CN104501945 A CN 104501945A
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Abstract
The invention relates to an optical power meter automatic metrological verification system and method. The system comprises a stable output light source module, an adjustable optical attenuator module, a standard optical power metering module, an optical divider, a tested-optical-power-meter automatic reading device and a computer system module, wherein the computer system module comprises a touch screen, an operating system and an application software module and is used for having control over the stable output light source module, the adjustable optical attenuator module, the optical power metering module and the optical divider. According to the optical power meter automatic metrological verification system and method, an original semi-automatic mode is improved by adding the tested-optical-power-meter automatic reading device, an automatic verification procedure is designed according to correlative regulations, and a full-automatic verification method is provided; in addition, the installation mode that the automatic reading device can be changed and fixed is designed, so that the reading device is suitable for tested optical power meters different in type and size, and practicability is improved.
Description
Technical field
The present invention relates to verification system and the method for optical fiber power meter or communication light power meter, particularly a kind of light power meter automatic gauge verification system and method.
Background technology
Optical fiber communication, due to remarkable advantages such as its bandwidth resources are large, transmission capacity is large, transmission speed is high, is widely used in each fields such as communication, electric power.The factors such as the range of sensitivity of the luminous power of luminescent device, the loss of transmission channel, light receiving device part are for the important that realizes of optical fiber communication, and measuring light power is one of the groundwork of daily optical fiber communication construction, maintenance.For ensureing normally carrying out of optical fiber communication, the assay calibration of light power meter is very necessary.
The light power meter that current communication service uses mainly contains hand-held and desk-top two kinds.The measurement verification of light power meter is mainly manually operated to the method for (optical attenuator), record (etalon optical power meter reading and light power meter reading to be measured), part producer achieves the semi-automatic mode of the automatic step-by-step operation of optical attenuator and etalon optical power meter automatic reading.
No matter use manual mode or semi-automatic mode, all can't do without the human intervention in measurement verification process.For across the entire province and even the measurement verification of a large amount of light power meters of nationwide, these two kinds of modes all both labor intensive, increase the working time, also easily introduce artificial error.
Summary of the invention
The object of the present invention is to provide a kind of light power meter automatic gauge verification system and method.
For achieving the above object, technical scheme of the present invention is: a kind of light power meter automatic gauge verification system, comprises
One stablizes output light source module, for exporting the light of multi-wavelength;
One adjustable optical attenuator module, decays for the light exported described stable output light source module;
One etalon optical power metering module, for measuring the light after adjustable optical attenuator decay;
One optical branching device;
One tested light power meter automatic reading device, for reading the reading of tested luminous power;
And a computer system module, comprise the touch-screen for carrying out man-machine interaction, operating system and application software module; Described computer system module is for controlling described stable output light source module, adjustable optical attenuator module, luminous power metering module and optical branching device.
In embodiments of the present invention, the wavelength of the light of described stable output light source module output comprises 850nm, 1310nm, 1550nm.
In embodiments of the present invention, the light joint categories of described stable output light source module selects FC/PC, and controls selection and the light source output of optical wavelength type by described computer system module and close.
In embodiments of the present invention, described tested light power meter automatic reading device is made up of the probe with registration automatic identification function.
In embodiments of the present invention, described application software module is loaded with automatic gauge calibrating software.
Present invention also offers a kind of calibration method adopting a kind of light power meter automatic gauge verification system as above, comprise the steps,
Step S1: first open light power meter to be measured before calibrating and carry out energising 30 minutes, connecting test line, performs step S2;
Step S2: system electrification, automatic gauge calibrating running software, if self-inspection is abnormal, then provides abnormality alarming prompting, terminates program; Otherwise perform step S3;
Step S3: carry out the setting of automatic gauge verification parameters:
1) the power measurement scope [a, b] of light power meter to be measured is set;
2) splitting ratio of optical branching device is set
;
3) select test event, comprise zero point drift, measuring repeatability, the error of indication;
4) the duplicate measurements number of times of measuring repeatability is set
and the time interval of adjacent twice
;
5) pendulous frequency of each indicating value in error of indication test is set
, and the indicating value number of required measurement
; Automatic gauge calibrating software program, according to indicating value number and power measurement scope, can provide the required point measured automatically
,
;
6) step-up error threshold value, comprises the error threshold of the error threshold of zero point drift, the error threshold of measuring repeatability and the error of indication;
Step S4: carry out zero point drift test;
Step S5: carry out measuring repeatability test, namely carries out the measurement of stipulated number to same fiber end face; After each measurement, before measurement next time, restart an adjustable optical attenuator; Repeated result calculating is carried out by formula (1),
formula (1)
In formula:
---the number percent of relative standard deviation;
---the reading value of standard light power measurement module during each duplicate measurements;
---
the arithmetic mean of secondary duplicate measurements reading;
Step S6: carry out error of indication test, namely carries out iteration measurement according to calculated test point; When measuring at every turn, the damping capacity of automatic gauge calibrating software control optical attenuation module, until when the numerical value fed back by etalon optical power measurement module reaches test point, start the reading identifying tested light power meter, treat the laggard line item of stable reading, error of indication calculating is carried out by formula (2)
formula (2)
In formula:
---the splitting ratio of optical branching device, the splitting ratio of etalon optical power meter place branch road and tested light power meter place branch road is
: 1;
---meters under test
secondary measurement mean value;
---etalon optical power measurement module reading
secondary measurement mean value;
Step S7: measurement result is filled into the respective items in report file, and contrast with set error threshold, draw the grade of examined and determine light power meter, form complete word document form report by operating system.
In embodiments of the present invention, in the step 4) of described step S3, described in
value is 6.
In embodiments of the present invention, in the step 5) of described step S3, described in
value is 3.
Compared to prior art, the present invention has following beneficial effect:
1) Intensive Design has been carried out to the structure of optical fiber power metering verification system; 2) the automatic gauge master routine according to measurement verification regulations is realized; 3) design light power meter automatic reading device principle to be measured, compensate for the deficiency of semi-automatic metering method, the light power meter that it also avoid for different manufacturers model principle carries out interface exploitation, and what reduce automatic gauge realizes difficulty; 4) mode held by the dress designing light power meter automatic reading device to be measured, to make it the equipment being applicable to the dissimilar different size of different manufacturers.
Accompanying drawing explanation
Fig. 1 is light power meter automatic gauge verification system structural principle block diagram of the present invention.
Fig. 2 is light power meter automatic gauge verification system main program flow chart of the present invention.
Fig. 3 is the concrete enforcement wiring diagram of light power meter automatic gauge verification system of the present invention.
Embodiment
Below in conjunction with accompanying drawing, technical scheme of the present invention is specifically described.
As shown in Figure 1, a kind of light power meter automatic gauge of the present invention verification system, comprises
One stablizes output light source module, for exporting the light of multi-wavelength (850nm, 1310nm, 1550nm);
One adjustable optical attenuator module, decays for the light exported described stable output light source module;
One etalon optical power metering module, for measuring the light after adjustable optical attenuator decay;
One optical branching device;
One tested light power meter automatic reading device, for reading the reading of tested luminous power; Described tested light power meter automatic reading device is made up of the probe with registration automatic identification function;
And a computer system module, comprise the touch-screen for carrying out man-machine interaction, operating system and application software module; Described computer system module is for controlling described stable output light source module, adjustable optical attenuator module, luminous power metering module and optical branching device.Described application software module is loaded with automatic gauge calibrating software.
The using method of above-mentioned light power meter automatic gauge verification system is as follows:
Tested light power meter is started shooting, preheating 30 minutes.During this period of time, test wire connection can be carried out, open the operations such as automatic Verification program; According to tested light power meter wavelength measurement scope (as 850 nm, 1310 nm, 1550 nm), delivery outlet corresponding to selective light source module, light adjustable damping module and measuring light power module is (corresponding to 850 nm, 1310 nm/1550 nm two kinds delivery outlets), select the pattern (single mode, multimode) of optical fiber and optical branching device.According to the light joint categories (as FC/PC) of above-mentioned selected delivery outlet and tested light power meter, select the optical fiber of corresponding joint categories and optical branching device (if optical branching device is restricted, as only having ST interface type, can be transferred by the jumping fiber of ST-FC/PC);
After connecting test macro shown in Fig. 3, tested light power meter is positioned over correct position, the direction of adjustment automatic reading probe, makes it to face tested light power meter display screen, and keeps certain distance;
Open verification system power supply, after tested light power meter preheating completes, start automatic Verification program by display screen, carry out relative set, click and start calibrating.At the end of calibrating, the probation redport that check system is provided, confirm errorless after, preserve file, shutdown system, remove test wire, close tested light power meter power supply.
As shown in Figure 2, present invention also offers a kind of calibration method adopting a kind of light power meter automatic gauge verification system as above, comprise the steps,
Step S1: first open light power meter to be measured before calibrating and carry out energising 30 minutes, connecting test line, performs step S2;
Step S2: system electrification, automatic gauge calibrating running software, if self-inspection is abnormal, then provides abnormality alarming prompting, terminates program; Otherwise perform step S3;
Step S3: carry out the setting of automatic gauge verification parameters:
1) the power measurement scope [a, b] of light power meter to be measured is set;
2) splitting ratio of optical branching device is set
;
3) select test event, comprise zero point drift, measuring repeatability, the error of indication;
4) the duplicate measurements number of times of measuring repeatability is set
and the time interval of adjacent twice
;
5) pendulous frequency of each indicating value in error of indication test is set
, and the indicating value number of required measurement
; Automatic gauge calibrating software program, according to indicating value number and power measurement scope, can provide the required point measured automatically
,
;
6) step-up error threshold value, comprises the error threshold of the error threshold of zero point drift, the error threshold of measuring repeatability and the error of indication;
Step S4: carry out zero point drift test;
Step S5: carry out measuring repeatability test, namely carries out the measurement of stipulated number to same fiber end face; After each measurement, before measurement next time, restart an adjustable optical attenuator; Repeated result calculating is carried out by formula (1),
formula (1)
In formula:
---the number percent of relative standard deviation;
---the reading value of standard light power measurement module during each duplicate measurements;
---
the arithmetic mean of secondary duplicate measurements reading;
Step S6: carry out error of indication test, namely carries out iteration measurement according to calculated test point; When measuring at every turn, the damping capacity of automatic gauge calibrating software control optical attenuation module, until when the numerical value fed back by etalon optical power measurement module reaches test point, start the reading identifying tested light power meter, treat the laggard line item of stable reading, error of indication calculating is carried out by formula (2)
formula (2)
In formula:
---the splitting ratio of optical branching device, the splitting ratio of etalon optical power meter place branch road and tested light power meter place branch road is
: 1;
---meters under test
secondary measurement mean value;
---etalon optical power measurement module reading
secondary measurement mean value;
Step S7: measurement result is filled into the respective items in report file, and contrast with set error threshold, draw the grade of examined and determine light power meter, form complete word document form report by operating system.
In embodiments of the present invention, in the step 4) of described step S3, described in
value is 6.
In embodiments of the present invention, in the step 5) of described step S3, described in
value is 3.
Be more than preferred embodiment of the present invention, all changes done according to technical solution of the present invention, when the function produced does not exceed the scope of technical solution of the present invention, all belong to protection scope of the present invention.
Claims (8)
1. a light power meter automatic gauge verification system, is characterized in that: comprise
One stablizes output light source module, for exporting the light of multi-wavelength;
One adjustable optical attenuator module, decays for the light exported described stable output light source module;
One etalon optical power metering module, for measuring the light after adjustable optical attenuator decay;
One optical branching device;
One tested light power meter automatic reading device, for reading the reading of tested luminous power;
And a computer system module, comprise the touch-screen for carrying out man-machine interaction, operating system and application software module; Described computer system module is for controlling described stable output light source module, adjustable optical attenuator module, luminous power metering module and optical branching device.
2. a kind of light power meter automatic gauge verification system according to claim 1, is characterized in that: the wavelength of the light that described stable output light source module exports comprises 850nm, 1310nm, 1550nm.
3. a kind of light power meter automatic gauge verification system according to claim 2, it is characterized in that: the light joint categories of described stable output light source module selects FC/PC, and control selection and the light source output of optical wavelength type by described computer system module and close.
4. a kind of light power meter automatic gauge verification system according to claim 1, is characterized in that: described tested light power meter automatic reading device is made up of the probe with registration automatic identification function.
5. a kind of light power meter automatic gauge verification system according to claim 1, is characterized in that: described application software module is loaded with automatic gauge calibrating software.
6. adopt a calibration method for a kind of light power meter automatic gauge verification system as claimed in claim 1, it is characterized in that: comprise the steps,
Step S1: first open light power meter to be measured before calibrating and carry out energising 30 minutes, connecting test line, performs step S2;
Step S2: system electrification, automatic gauge calibrating running software, if self-inspection is abnormal, then provides abnormality alarming prompting, terminates program; Otherwise perform step S3;
Step S3: carry out the setting of automatic gauge verification parameters:
1) the power measurement scope [a, b] of light power meter to be measured is set;
2) splitting ratio of optical branching device is set
;
3) select test event, comprise zero point drift, measuring repeatability, the error of indication;
4) the duplicate measurements number of times of measuring repeatability is set
and the time interval of adjacent twice
;
5) pendulous frequency of each indicating value in error of indication test is set
, and the indicating value number of required measurement
; Automatic gauge calibrating software program, according to indicating value number and power measurement scope, can provide the required point measured automatically
,
;
6) step-up error threshold value, comprises the error threshold of the error threshold of zero point drift, the error threshold of measuring repeatability and the error of indication;
Step S4: carry out zero point drift test;
Step S5: carry out measuring repeatability test, namely carries out the measurement of stipulated number to same fiber end face; After each measurement, before measurement next time, restart an adjustable optical attenuator; Repeated result calculating is carried out by formula (1),
formula (1)
In formula:
---the number percent of relative standard deviation;
---the reading value of standard light power measurement module during each duplicate measurements;
---
the arithmetic mean of secondary duplicate measurements reading;
Step S6: carry out error of indication test, namely carries out iteration measurement according to calculated test point; When measuring at every turn, the damping capacity of automatic gauge calibrating software control optical attenuation module, until when the numerical value fed back by etalon optical power measurement module reaches test point, start the reading identifying tested light power meter, treat the laggard line item of stable reading, error of indication calculating is carried out by formula (2)
formula (2)
In formula:
---the splitting ratio of optical branching device, the splitting ratio of etalon optical power meter place branch road and tested light power meter place branch road is
: 1;
---meters under test
secondary measurement mean value;
---etalon optical power measurement module reading
secondary measurement mean value;
Step S7: measurement result is filled into the respective items in report file, and contrast with set error threshold, draw the grade of examined and determine light power meter, form complete word document form report by operating system.
7. a kind of light power meter automatic gauge calibrating calibration method according to claim 6, is characterized in that: in the step 4) of described step S3, described in
value is 6.
8. a kind of light power meter automatic gauge calibrating calibration method according to claim 6, is characterized in that: in the step 5) of described step S3, described in
value is 3.
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| CN201510023488.4A CN104501945B (en) | 2015-01-17 | 2015-01-17 | A kind of light power meter automatic gauge verification system and method |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111103055A (en) * | 2019-11-27 | 2020-05-05 | 上海传输线研究所（中国电子科技集团公司第二十三研究所） | Optical power automatic calibration system and method |
| CN113595627A (en) * | 2021-07-02 | 2021-11-02 | 中国电子技术标准化研究院 | Optical power calibration method based on space linear superposition principle |
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| JP2005283217A (en) * | 2004-03-29 | 2005-10-13 | Technologue:Kk | Led emission measuring device |
| CN101047133A (en) * | 2006-03-28 | 2007-10-03 | 东贝光电科技股份有限公司 | Manufacturing method for LED module |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113595627A (en) * | 2021-07-02 | 2021-11-02 | 中国电子技术标准化研究院 | Optical power calibration method based on space linear superposition principle |
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